Malicious PDF — malware analysis report

Static analysis result for SHA-256 60acfc200a7e9f30…

MALICIOUS

PDF

211.0 KB Created: 2021-03-29 18:57:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 9b79db02b19623c2c781dca6824fe39b SHA-1: de299e914965132698736b9e6361d77f630983e0 SHA-256: 60acfc200a7e9f30db057fe4a36071a76174bf29a887c1f55e6bb09fdbfc6774
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9825

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://maypoin.ru/award?keyword=tacx+bushido+smart+manual+pdf PDF link annotation
    • https://jupavovol.weebly.com/uploads/1/3/4/3/134314217/3353465.pdfIn PDF document text
    • https://jupavovol.weebly.com/uploads/1/3/4/3/134314217/9909358.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389361/normal_6015407558ec0.pdfIn PDF document text
    • https://nobewiga.weebly.com/uploads/1/3/5/3/135315034/6109253.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408001/normal_5fc90fc780f79.pdfIn PDF document text
    • https://kidisizim.weebly.com/uploads/1/3/4/8/134899836/vitefutisi_luxoporezemavow.pdfIn PDF document text
    • https://zumegopepotiko.weebly.com/uploads/1/3/1/3/131398003/f0b6fc8e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486201/normal_5fd2f4b6ec109.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451950/normal_6015a0bc27186.pdfIn PDF document text
    • https://befomunuduti.weebly.com/uploads/1/3/1/1/131164266/jibetojiwomij.pdfIn PDF document text
    • https://vidokabotofasi.weebly.com/uploads/1/3/4/8/134868814/e57deda7ed9917.pdfIn PDF document text
    • https://wewiloviwa.weebly.com/uploads/1/3/4/5/134585183/2960907.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449984/normal_5ffed4f098731.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jozaponi/photoshop_splash_brushes_free_cs6.pdfIn PDF document text
    • http://wireruzivu.epizy.com/hp_officejet_pro_8600_plus_operating_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fevobelijogal/5224383329.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuduwonifa/punctuation_worksheets_with_answers_for_grade_10.pdfIn PDF document text
    • http://xonelamurojili.rf.gd/fotameviwukub.pdfIn PDF document text
    • https://s3.amazonaws.com/vukumesoj/arduino_ide_esp8266.pdfIn PDF document text
    • https://s3.amazonaws.com/xomudufe/antimicrobial_resistance_test.pdfIn PDF document text
    • http://disukifas.epizy.com/camarilla_pivot_points_excel_sheet.pdfIn PDF document text
    • http://kagapoxarizi.rf.gd/us_constitution_second_amendment.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000186c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x186C9 112168 bytes
SHA-256: ffe8633d3f7a79cc40dfb82becb5acdf0c93f80e0a6202a4ec4b55f22d45c5c3
font_01_sfnt_off0002d638.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D638 5552 bytes
SHA-256: 32dc0890b390710339d2095717c5761b760fbdbbf51c22a1d51f17c8da4adee0
font_02_sfnt_off0002e8e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E8E8 23156 bytes
SHA-256: 706804c15c017c03cb307892bce3fe482012a7fa25a35aa433dece7768079010
font_03_sfnt_off00032557.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32557 16440 bytes
SHA-256: 689a1e3a2c54ab0a55a4b5f37dd850cfc839212e371d6839e382dc9c5ce4bae7

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